page_title: Lathe
section_title: Duplicating lathes
hierarchical_section_title: Lathe / Major categories / Duplicating lathes
caption_attribution_description: English: Harpers Ferry Armory gunsmith shop had machines for production of the lock, the stock and the barrel. The machines are from the 1850s and are all powered by water. The power is transmitted to the machine by a set of pulleys and leather belts. This machine is a Duplicating or Blanchard lathe used to create stock identical to a pattern.
context_page_description: A lathe is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, sanding, knurling, drilling, deformation, facing, and turning, with tools that are applied to the workpiece to create an object with symmetry about that axis.
context_section_description: One type of specialized lathe is duplicating or copying lathe also known as Blanchard lathe after its inventor Thomas Blanchard. This type of lathe was able to create shapes identical to a standard pattern and it revolutionized the process of gun stock making in the 1820s when it was invented.
caption: Water-powered Blanchard lathe used for duplicating gun stocks from the 1850s. Harpers Ferry Armory.
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